@___prosti profile picture
Gabriel Prostitis @___prosti
Joined July 2025
  • Tweets 29
  • Following 150
  • Followers 326
2 Photos and videos
Pinned Tweet
Gabriel Prostitis@___prosti
8 Dec 2025
stop using ubuntu 24.04 to host your kernel pwn challenges lmao kqx.io/post/qemu-nday/
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Gabriel Prostitis retweeted
kqx
@kqx_io
Jun 6
Pwning V8CTF with a 0day in Chrome thanks to Phi untagging. Read here: kqx.io/post/cve-2026-4447/
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Gabriel Prostitis retweeted
Daniele Mammone@DanieleMammone
May 26
Oops!… @mhackeroni Did It Again! Vegas we are coming! #defcon #mhackeroni #ctf
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this 0day works from qemu v9.1 forward. It is still not patched on the latest version so enjoy!
kqx
@kqx_io
May 24
DEF CON patched our QEMU nday, what about a 0day? kqx.io/post/qemu-0day
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Gabriel Prostitis retweeted
Salvatore Abello@salvatoreabello
May 16
💿Crafting shared object/image polyglots by abusing a forgotten image format: blog.babelo.xyz/posts/elf-in…

ELF in the Pixels: Building Shared Object-Image Polyglots

In this post, I will show how to build shared object/image polyglots that can bypass image validation in Python applications. I will start from a challenge I …

blog.babelo.xyz
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Gabriel Prostitis retweeted
kqx
@kqx_io
Apr 30
We just posted six new writeups for TRX CTF Quals at kqx.io/writeups Check them out!
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Gabriel Prostitis retweeted
TRX@TheRomanXpl0it
Apr 23
"hey claude plz solve all challenges ctftime.org/event/3141" TRX CTF 2026 is coming back this weekend with many cool challenges! Register now at: ctf.theromanxpl0.it/ Top 8 teams will qualify for on-site finals in Italy this autumn🐴
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Gabriel Prostitis retweeted
kqx
@kqx_io
Apr 22
less than three days left until the start of TRX CTF! get ready for: - two kernel pwn challenges - browser shenanigans - a *real* x86 challenge - reversing a kernel module make sure to register and fight for a spot in the finals in Italy! ctf.theromanxpl0.it/
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Gabriel Prostitis retweeted
堇姬 Naup@naup96721
Mar 25
My First CVE and my first contribute linux kernel naup.mygo.tw/2026/03/23/My-F…

My First CVE - CVE-2026-23275 - io uring resize and taskrun race condition

My First CVE - CVE-2026-23275 - io uring resize and taskrun race condition Author: 堇姬 Naup (naup96321) 前言人生的第一個 CVEhttps://www.cve.org/CVERecord/?id=CVE-2026-23275 io uringio_uring 的核心設計目標是減少 I/

naup.mygo.tw
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Gabriel Prostitis retweeted
kqx
@kqx_io
Mar 20
"Claude find a 0day, make no mistakes" CVE-2026-4447 chromereleases.googleblog.co…
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leave absolutely cooked with this one! Unfortunately I wasn't able to play DiceCTF this year but the kernel pwn challenge was pretty cool.
kqx
@kqx_io
Mar 8
played DiceCTF quals and managed to blood the kernel pwn challenge and won the $150 bounty! check out the writeup: kqx.io/writeups/cornelslop/
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Gabriel Prostitis retweeted
kqx
@kqx_io
Mar 2
Exploiting latest v8ctf instance with a 0day? ✅ Beating try-hards who stalk commits and exploit it as an N-day? ❌ In any case keep an eye out for the CVE release and stay tuned for a crazy post on kqx.io once the issue goes public
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kqx
@kqx_io
Feb 20
A little bonus while we're working on other cool stuff :)
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drivertom@drivertomtt
Feb 17
Hunting Linux kernel 0day with @FrankOverF1ow 5 days, from zero to stable privilege escalation. sha256: 2189d5b196f33d512d8d02c6f00d26f4c10bf79ba1f0ac389d6663e026aebbe8
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Gabriel Prostitis retweeted
kqx
@kqx_io
Feb 13
How a single typo led to RCE in Firefox Can you spot the bug? Read now at: kqx.io/post/firefox0day/
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RCE in firefox is crazy!! erge really cooked with this one...
kqx
@kqx_io
Feb 3
The fox caught fire??? New blog post very soon at kqx.io/ 6b2f0f9f754952d956cab1a6922c920664d2636c192db4db614866345369a888
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We decided to create a new account on X to consolidate all information in one place. Follow the account to be updated on the blog! @kqx_io
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Let's begin the new year with some V8 exploitation! Learn how to turn a broken CanonicalEquality check into arbitrary Wasm type confusion in this ASIS CTF Finals writeup by @Erge! Read it here: kqx.io/writeups/singleton
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Gabriel Prostitis retweeted
leave@_leave07
14 Dec 2025
had fun playing Backdoor CTF 2025, ended up fifth with TRX and first-blooded a kernel pwn challenge. Have a look at the writeup: kqx.io/writeups/vibe_kode
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Gabriel Prostitis retweeted
leave@_leave07
27 Nov 2025
If you're interested in exploiting JS engines check out what we faced in Romania at DefCamp finals 2025: kqx.io/writeups/inline8/

Inline8 - DefCamp DCTF Finals 2025 – kqx

Exploiting a pretty broken JS-engine

kqx.io
DefCamp@DefCampRO
14 Nov 2025
It wouldn‘t really be #DefCamp without the #HackingVillage. A huge round of applause for everyone who joined our competitions! Whether you took home a prize or new insights, we hope you had an amazing time!
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